A set of curves and numerical values is given, representing the relative importance of the main nuclear interferences involved
in the determination of Be, B, C, N, O and F by p, d,3He and α activation. The possibilities offered by these charged particles and γ photons are compared, taking into account
detection sensitivities on the one hand and interferences on the other. It is then possible to define the optimum irradiation
conditions for the standard determination of each of these light elements.